Welch Allyn 3.5v Streak Retinoscope Head - Model 18200
The right design for accurate refraction. Features and Benefits The Welch Allyn 3.5v Retinoscope has an external focusing sleeve that's easy to grip and easy to manipulate. Its brighter halogen light provides true tissue color and consistent, long-lasting illumination. The crossed-linear polarizing filter eliminates glare from trial lenses for easier exams. It has magnetic age-appropriate targets for dynamic retinoscopy. It allows easy one-hand operation for streak focus and 360 streak rotation.